PURPOSE: To facilitate the udnerground installation of a device by integrally arranging each equipment in a snow melting device and arranging a grating for an intake and exhaust port in the upper part.
CONSTITUTION: The circulation liquid of a snow melting panel buried in a road is heated through a water heat exchanger 11 by a coolant whose temperature is raised by a heat pump compressor 10, and used for melting the snow on the road surface, and the liberated heat is recovered from the outside air by an air heat exchanger 13, and a heat pump cycle is formed. Then, the outside air taken in from an intake grating 20 is discharged from an exhaust grating 26 in the course of the air streams 30, 31, 32 and 34, and the ventilation in a room is performed. Then, the gratings 20 and 26 and a ceiling plate 23 are heated by the electrical heat or the branched stream of the circulation liquid of the exchanger 11, and the piling of snow and ice freezing are prevented. The intruding molten water is separated by an intake louver 22 and an exhaust louver 24 and discharged outside. Further, the circulation liquid is allowed to branched-flow in the rectangular pipe 60 of the uppermost edge frame, and an atmosphere opened vent pipe is installed as expansion tank. Accordingly, the upper surface of the device can be made same to the ground surface, and the installation under the ground can be executed in simple manner.
YOSHIDA YORIO
HARADA HIROSHI
KUDO TAKANORI
MIYAOU MASAO
SATO KAZUYOSHI
OSANAI TSUNEYUKI
NOBUHIRA KOUSEI
MAEKAWA SEISAKUSHO KK